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https://github.com/YosysHQ/yosys
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45 lines
1.5 KiB
Verilog
45 lines
1.5 KiB
Verilog
/*
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* yosys -- Yosys Open SYnthesis Suite
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*
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* Copyright (C) 2021 Cologne Chip AG <support@colognechip.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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module \$lut (A, Y);
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parameter WIDTH = 0;
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parameter LUT = 0;
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(* force_downto *)
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input [WIDTH-1:0] A;
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output Y;
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generate
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if (WIDTH == 1) begin
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CC_LUT1 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]));
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end
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else if (WIDTH == 2) begin
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CC_LUT2 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(A[1]));
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end
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else if (WIDTH == 3) begin
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CC_LUT3 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(A[1]), .I2(A[2]));
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end
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else if (WIDTH == 4) begin
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CC_LUT4 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(A[1]), .I2(A[2]), .I3(A[3]));
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end
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else begin
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wire _TECHMAP_FAIL_ = 1;
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end
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endgenerate
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endmodule
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